From the sticky by Lenteylek:
Q: How do I know if I got a game on a hot ip?
A: Follow these steps: Start -> Run -> cmd -> netstat -n | find "4000" You will see a list of ip(s) and the number directly before ":4000" is the game ip you want to match to the hot ip. For example, you have done the previous steps and you now see 63.240.202.145:4000 listed. The ip would be .145 and if that does not match the current hot ip you want then remake a game and repeat this until you do get a match.